The Lopt Sword (Japanese: ロプトの剣Lopto Sword) is a sword exclusive to Fire Emblem: Thracia 776. A personal weapon of Raydrik's and later Mus's, it is a powerful albeit heavy sword capable of increasing the wielder's magic and halving its target's attack power.

Despite being locked to unrecruitable characters, the Lopt Sword is, in fact, an obtainable weapon. No character under the player's control is capable of wielding it, however.